如何找到美中不足的苍蝇？为什么电池检测对于可靠的产品至关重要.pdf

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1、www.safion.de1This information is prepared by SAFION GmbH solely for the use of the intended recipient.How to find the fly in the ointment?Why battery inspection is crucial for reliable productswww.safion.de2This information is prepared by SAFION GmbH solely for the use of the intended recipient.Sam

2、e same,but differentBatteries from the same batch ages in different trajectories How it startedHow its goingwww.safion.de3This information is prepared by SAFION GmbH solely for the use of the intended recipient.Battery Quality and Product LifetimeQuality variations lead to safety and warranty casesS

3、ource:T.Baumhfer et al./Journal of Power Sources 247(2014)332e338Weak battery cells reduce battery pack lifetime significantly Possible warranty cases:70*$22k=$1.54MSource:https:/electrek.co/2018/04/14/tesla-battery-degradation-data/and own modificationsRemaining Driving Range%Driven Milage kmCapaci

4、ty AhCycles#25%shorter battery lifeBattery Quality Variations Battery System Lifetimewww.safion.de4This information is prepared by SAFION GmbH solely for the use of the intended recipient.Present End of Line/Incoming Goods InspectionMethod comparisonSelf Discharge/OCV1kHz Resistance/AC-IR Typically

5、performed by cell manufacturer Weak quality correlation(1)Industry standard for a long time Weak quality correlation(1)Zilberman et al.,https:/doi.org/10.1016/j.est.2019.100900(2)Hybrid pulse power profile characterizationSpeedRobustnessCapExPerformanceAssessmentLifetimePredictabilitySpeedRobustness

6、CapExPerformanceAssessmentLifetimePredictabilityCapacity/HPPC(2)Test Impractical in many applications Strong quality correlationSpeedRobustnessCapExPerformanceAssessmentLifetimePredictabilitywww.safion.de5This information is prepared by SAFION GmbH solely for the use of the intended recipient.EIS*is